REPAIR
Roller Valve
WARNING
Always follow the Pressure Relief Procedure Warning on page 8 before attempting any repair.
NOTE: Order repair kit no. 218±960 to repair this roller valve.
1.Tap out the pin (A) and slide the trigger (B) off of the valve. See Fig 6.
2.Remove the cap (C).Unscrew the fluid housing (D). See Fig 6.
3.Pull the needle (K) out.
4.Tap the seat (G) out of the roller valve (N). See Fig 6.
5.Remove the ball (F) and spring (E). See Fig 6.
6.Turn the nylon screw (L) into the packing. Insert the needle (K) through the housing (D) and push out the packing (H). See Fig 7.
7.Clean all parts thoroughly. Use a cotton±tipped swab or pipe cleaner to clean small orifices.
8.Grease the needle (K) and packing (H). Insert the ta- pered end of the needle into the back (flat) side of the packing. See Fig 8.
9.Guide the tapered end of the needle into the assem- bly tool (M) and press the lips of the packing over the end of the tool. See Fig 8.
10.Grease the free end of the needle. Guide the tool (M) into the fluid housing until the needle protrudes through the top of the housing. Lightly tap the tool end until you hear the packing bottom in the housing. Remove the tool with pliers. See Fig 8.
11.Grease the seat (G) and place it on the fluid housing so the seat which is formed on the inside diameter faces out. See Fig 9.
12.Install the spring (E) in the spring cavity of the valve handle, then install the ball (F) so it is centered on the spring. See Fig 6.
13.Place the
14.Push on the needle until you feel some resistance.
15.Grease the cap (C) and place it on the end of the needle. See Fig 6.
16.Slide the trigger (D) into place. Install the pin (A). See Fig 6.
CAUTION
Never attempt to remove the adapter fittings from either end of the valve body (N). Doing so could crack the body.
N
J
K
D
C
B
E
AF
G
H
TORQUE TO
1.7± 2.2 N.m (15±20
Fig 6
L
H
D
K
Fig 7
LIPS FACE OUT | TAPERED END |
| |
OF HOUSING (D) | M |
D K H
Fig 8
SEAT MUST
FACE BALL
N
F E
C D G
Fig 9
307±760 9